77853880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8807}}^1$

素因数の和:8848

約数の個数: 64

約数和(自身を含む): 199765440

約数和(自身を除く): 121911560

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8807, 8840, 17614, 35228, 44035, 70456, 88070, 114491, 149719, 176140, 228982, 299438, 352280, 457964, 572455, 598876, 748595, 915928, 1144910, 1197752, 1497190, 1946347, 2289820, 2994380, 3892694, 4579640, 5988760, 7785388, 9731735, 15570776, 19463470, 38926940, 77853880]

約数ペア:

[(1, 77853880), (2, 38926940), (4, 19463470), (5, 15570776), (8, 9731735), (10, 7785388), (13, 5988760), (17, 4579640), (20, 3892694), (26, 2994380), (34, 2289820), (40, 1946347), (52, 1497190), (65, 1197752), (68, 1144910), (85, 915928), (104, 748595), (130, 598876), (136, 572455), (170, 457964), (221, 352280), (260, 299438), (340, 228982), (442, 176140), (520, 149719), (680, 114491), (884, 88070), (1105, 70456), (1768, 44035), (2210, 35228), (4420, 17614), (8807, 8840)]